OK I just setup my Epson R320 a few days ago and Printed the free CD that came along with it.
It printed about 1/16" shy of the inner and outer border.
I then found some Maxell 8x Full Hub printables (Made in Japan so not a total loss).
The inner diamiter I had set to 20, that printed perfect!
The outer I moved out to 120 and that was still about 1/16" shy.
So do I just trial and error and keep moving it out?
Any other tips is greatly appreciated.